[commodorecrush]

Originally Posted by DeadPit

I'm going to take a wild guess since I watched this film a couple days ago...

Haute Tension aka High Tension?

Trailer
http://www.youtube.com/watch?v=3J0yc4ndZ3s

EDIT: Doing a google search the film "Splinter" came up.

Trailer
http://www.youtube.com/watch?v=aJndd5Eyz18

Thanks! I think it's High Tension. I originally saw a different trailer though. Have you seen it? Is it any good?